Home / 19,168.64-28,743.85-6,687.15

Finding the Fourth Proportional to 19,168.64, 28,743.85 and 6,687.15

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Solution

The fourth proportional to 19,168.64, 28,743.85 and 6,687.15 is: 10,027.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,168.64 : 28,743.85 = 6,687.15 : x
  2. Step 2: Convert to fraction form
    19,168.64/28,743.85 = 6,687.15/x
  3. Step 3: Cross multiply
    19,168.64x = 28,743.85 × 6,687.15
  4. Step 4: Simplify right side
    19,168.64x = 192,214,436.53
  5. Step 5: Solve for x
    x = 192,214,436.53/19,168.64
  6. Step 6: Final answer
    x = 10,027.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.